IMHO.

Single-player games like The Swordfish: Knight of the Deep

Below are 8 single-player Steam games similar to The Swordfish: Knight of the Deep, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Swordfish: Knight of the Deep page.

Ranked picks

  1. 1
    Pronty — Steam game cover

    Pronty

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Guide Pronty and its Javelin partner Bront as it defends the once great city of Royla. Explore the deep sea, fight mutant sea creatures, and discover the secrets behind this new Atlantis in this beautiful action-packed adventure.

    2021ActionIndieAdventure17.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Primal Planet — Steam game cover

    Primal Planet

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Unveil a heartfelt story of family, dinosaurs, and UFOs! Craft, upgrade, and survive in a realm of primeval predators, savage tribes and... ancient aliens. Rise from a humble cave dweller to the planet’s last hope — alone or in local co-op. Welcome to the dinovania!

    2025ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Chronicles of the Wolf — Steam game cover

    Chronicles of the Wolf

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Hunt the legendary Beast of Gévaudan in Chronicles of the Wolf! Step into the boots of Mateo Lombardo in this epic adventure featuring brutal bosses, vast castles, and secrets to uncover. Narration by the legendary Robert Belgrade and other special appearances!

    2025ActionIndieAdventure13.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Blasphemous 2 — Steam game cover

    Blasphemous 2

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    The Penitent One awakens as Blasphemous 2 joins him once again in an endless struggle against The Miracle. Dive into a perilous new world filled with mysteries and secrets to discover, and tear your way through monstrous foes that stand between you and your quest to end the cycle once and for all. 

    2023ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Alwa's Legacy — Steam game cover

    Alwa's Legacy

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Alwa’s Legacy is a modern retro game full of dangerous dungeons, mystic items and ancient secrets. Upgrade your magic and choose your own path in this non-linear adventure game brimming with exploration.

    2020ActionIndieAdventure17.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    The Aquatic Adventure of the Last Human — Steam game cover

    The Aquatic Adventure of the Last Human

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Explore the ruins of the human race and discover the thriving wildlife that blossomed after our extinction in this underwater action/adventure. Encounter monstrous creatures and let curiosity guide you through an inevitable voyage of extinction.

    2016ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Momodora: Reverie Under The Moonlight — Steam game cover

    Momodora: Reverie Under The Moonlight

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Momodora: Reverie Under The Moonlight is the fourth installment in the beloved Momodora series of 2D platformers. Unleash ravaging combos against a variety of formidable monsters and deftly dodge your way through a cursed land to seek audience with the Queen and dispel the evil that threatens all life.

    2016ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Timespinner — Steam game cover

    Timespinner

    Single-player alternative to The Swordfish: Knight of the Deep — playable solo, no multiplayer required. Shares Action and Indie with The Swordfish: Knight of the Deep.

    Travel back in time to change fate itself, in this beautifully crafted story-driven adventure, inspired by classic 90s action-platformers. Join timekeeper Lunais on her quest for revenge against the empire that killed her family, using time-bending powers to explore a vast, connected world.

    2018ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →